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KR101625735B1 - 멀티 에코 측정 시퀀스를 구현하는 방법 및 자기 공명 시스템 - Google Patents

멀티 에코 측정 시퀀스를 구현하는 방법 및 자기 공명 시스템 Download PDF

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KR101625735B1
KR101625735B1 KR1020140040651A KR20140040651A KR101625735B1 KR 101625735 B1 KR101625735 B1 KR 101625735B1 KR 1020140040651 A KR1020140040651 A KR 1020140040651A KR 20140040651 A KR20140040651 A KR 20140040651A KR 101625735 B1 KR101625735 B1 KR 101625735B1
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South Korea
Prior art keywords
gradient pulse
amplitude
gradient
read
maximum
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KR1020140040651A
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English (en)
Korean (ko)
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KR20140121363A (ko
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알토 스테머
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지멘스 악티엔게젤샤프트
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/50—NMR imaging systems based on the determination of relaxation times, e.g. T1 measurement by IR sequences; T2 measurement by multiple-echo sequences
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5616—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using gradient refocusing, e.g. EPI

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  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
KR1020140040651A 2013-04-05 2014-04-04 멀티 에코 측정 시퀀스를 구현하는 방법 및 자기 공명 시스템 KR101625735B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310206026 DE102013206026B3 (de) 2013-04-05 2013-04-05 Optimierte Gradientenecho-Multiecho-Messsequenz
DE102013206026.2 2013-04-05

Publications (2)

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KR20140121363A KR20140121363A (ko) 2014-10-15
KR101625735B1 true KR101625735B1 (ko) 2016-05-30

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KR1020140040651A KR101625735B1 (ko) 2013-04-05 2014-04-04 멀티 에코 측정 시퀀스를 구현하는 방법 및 자기 공명 시스템

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US (1) US9581667B2 (ja)
JP (1) JP6278803B2 (ja)
KR (1) KR101625735B1 (ja)
CN (1) CN104101852B (ja)
DE (1) DE102013206026B3 (ja)

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DE102014203890B4 (de) * 2014-03-04 2016-03-24 MRB Forschungszentrum für Magnet - Resonanz - Bayern e.V. Leise echoplanare Bildgebung mit segmentiertem k-Raum
CN105334321B (zh) * 2014-07-31 2017-07-18 西门子(深圳)磁共振有限公司 磁共振成像方法和系统
KR101844514B1 (ko) 2016-09-02 2018-04-02 삼성전자주식회사 자기 공명 영상 장치 및 자기 공명 영상 획득 방법
CN112014782B (zh) * 2020-08-06 2023-07-28 深圳先进技术研究院 磁共振成像方法、装置及计算机存储介质
EP4194877A4 (en) 2020-08-06 2023-09-27 Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences METHOD AND DEVICE FOR GENERATING IMAGE USING MAGNETIC RESONANCE AND COMPUTER STORAGE MEDIUM
CN112965018B (zh) * 2021-03-16 2022-04-01 厦门大学 基于时空编码螺旋磁共振成像的多回波采样及重建方法
CN114325531B (zh) * 2021-12-31 2024-06-25 深圳市联影高端医疗装备创新研究院 磁共振系统延迟的校正方法、装置、计算机设备和介质

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US20040015071A1 (en) 2000-08-11 2004-01-22 Kazumi Komura Magnetic resonance imaging apparatus
US20090177078A1 (en) 2006-02-13 2009-07-09 Hitachi Medical Corporation Magnetic resonance imaging apparatus and method
JP2012192185A (ja) 2011-03-16 2012-10-11 Siemens Ag パルスシーケンス、実際のフリップ角の決定方法、送信器電圧の調整方法、磁気共鳴装置、コンピュータプログラム製品および電子的に読み取り可能なデータ媒体

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DE19520203C1 (de) * 1995-06-01 1996-11-21 Siemens Ag Verfahren zur Vermeidung von Bildabschattungen bei Kernspintomographiegeräten, die mit Multiechosequenzen betrieben werden
JP3525007B2 (ja) * 1996-03-28 2004-05-10 株式会社日立メディコ 磁気共鳴イメージング装置
US5917323A (en) * 1997-07-01 1999-06-29 General Electric Company Correction of axial image signal fall off caused by Maxwell terms
US6157192A (en) * 1998-04-14 2000-12-05 Wisconsin Alumni Research Foundation Recovery of signal void arising from field inhomogeneities in echo planar imaging
DE10063676B4 (de) 2000-12-20 2006-08-17 Siemens Ag Multiecho-Bildgebungsverfahren
JP5142979B2 (ja) * 2005-03-23 2013-02-13 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 緩和パラメータを空間的に分解して決定するための磁気共鳴方法
DE102005046732B4 (de) 2005-04-18 2010-04-15 Siemens Ag Verbessertes Rekonstruktionsverfahren bei der Propellerbildgebung in der Magnetresonanztomographie
DE102006058316B4 (de) * 2006-12-11 2010-10-14 Siemens Ag Verfahren zur Aufnahme von Bilddaten einer Gefäßwand und Magnet-Resonanz-Gerät hierzu
US7535222B2 (en) 2007-01-02 2009-05-19 The Board Of Trustees Of The Leland Stanford Junior University MRI data acquisition using propeller k-space data acquisition
CN101470180B (zh) 2007-12-29 2016-01-20 西门子（中国）有限公司 磁共振成像中失真校准的方法和装置
US8664954B2 (en) * 2009-03-31 2014-03-04 Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V. Magnetic resonance imaging with improved imaging contrast

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040015071A1 (en) 2000-08-11 2004-01-22 Kazumi Komura Magnetic resonance imaging apparatus
US20090177078A1 (en) 2006-02-13 2009-07-09 Hitachi Medical Corporation Magnetic resonance imaging apparatus and method
JP2012192185A (ja) 2011-03-16 2012-10-11 Siemens Ag パルスシーケンス、実際のフリップ角の決定方法、送信器電圧の調整方法、磁気共鳴装置、コンピュータプログラム製品および電子的に読み取り可能なデータ媒体

Also Published As

Publication number Publication date
CN104101852B (zh) 2017-01-18
JP2014200687A (ja) 2014-10-27
CN104101852A (zh) 2014-10-15
JP6278803B2 (ja) 2018-02-14
US9581667B2 (en) 2017-02-28
KR20140121363A (ko) 2014-10-15
US20140300356A1 (en) 2014-10-09
DE102013206026B3 (de) 2014-08-28

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